unity set game view window scale to min when played

GameViewAutoScaler.cs

using System.Reflection;
using UnityEngine;

namespace Common {
    public class GameViewAutoScaler : MonoBehaviour {
#if UNITY_EDITOR
        private void Awake() {
            SetGameViewScaleMin();
        }

        public static void SetGameViewScaleMin() {
            var assembly = typeof(UnityEditor.EditorWindow).Assembly;
            var ty = assembly.GetType("UnityEditor.GameView");
            var v = UnityEditor.EditorWindow.GetWindow(ty);
            var priv = BindingFlags.Instance | BindingFlags.NonPublic;

            // var defaultScale = ty.GetField("m_defaultScale", priv);
            var areaField = ty.GetField("m_ZoomArea", priv);
            var area = areaField.GetValue(v);
            var scale = area.GetType().GetField("m_Scale", priv);
            scale.SetValue(area, new Vector2(0.01f, 0.01f));
        }
#endif
    }
}